Add to that, the 100 mile wide strip that goes around the whole country they call a "Constitution Free Zone" That DHS can use to for "immigration" searches. Take special note of just how many large population centers that are actually INSIDE this zone.
Judge Reaffirms Constitution Free Zones 100 Miles Inside U.S. Borders
Sauce,
http://www.truthandaction.org/judge-reaffirms-constitution-free-zones-100-miles-inside-u-s-borders/